Tuesday, 12 May 2020

ORA-28040: No matching authentication protocol.

when you use old version client to connect to connect latest database server version, you may get below issue.

ORA-28040: No matching authentication protocol.

Ex: oracle 11.1 client is trying to connect 12.2 database server.

you may set the parameter SQLNET.ALLOWED_LOGON_VERSION_SERVER in sqlnet.ora to fix the issue.
you can find the full details about the parameter settings here 

No comments:

Post a Comment